Paper-polishing machine



3 Sheets-Sheet 1.

Patented Apr. '7, 1896.

G. F. HAUFP. PAPER POLISHING MACHINE.

(No Model.)

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ANDREW BGRAHAN. FHOTDLHHQWASHINGIDKDL (No Model.) 0 P 3 Sheets-Sheet 2. PAPER POLISHING MACHINE.

No. 557,806. Patented Apr. '7, 1896.

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(No Model.) V

U. P. HAUPP.

- PAPER POLISHING -MAGHINE. No. 557,806. Patented Apr. 7, 189-6.

F III II I UNITED STATES ATENT OFFICE.

CHRISTIAN F. I'IAUFF, OF SPRINGFIELD, MASSACHUSETTS.

PAPER-POLISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 557,806, dated April '7, 1896.

Application filed March 4, 1896. Serial No. 540,434. (No model.)

To aZZ whom it may concern.-

Be it known that I, CHRISTIAN F. IIAUFF, a citizen of the United States of America, and aresident of the city of Springfield, in the county of llampden and State of Massachusetts, have invented a new and useful Improvement in Paper-Polishing Machines, of which the following is a specification.

The essential features in the invention are more particularly pointed out in the specification and claim hereinafter set forth.

In the annexed drawings, Figure 1 represents a front elevation of the paper-polishing machine with its power counter-shaft and the flint pressurespring attachment constructed according to my invention. Fig. 2 is a side view of the same machine, the power-shaft and flint pressure-spring attachment being not shown. Fig. 3 is a detached verticallongitudinal section of the portions of the machine over which the paper passes from the uuwin ding to the winding papendrum. Fig. & is a detached face view of the belt-shifting devices of the machine. Fig. 5 represents a detached face view of the bars I and K with their adjusting-screws 1.

At the front portion of the machine is arranged the winding drum or spool T, upon which the polished paper is wound, and at the rear of the machine is arranged parallel with the spool V the unwinding-spool U, from which the unpolished paper is drawn.

The letter A represents the frame of the machine, which is constructed of two connected opposite side frame-sections B B to carry the bearings of all the paper-carrying rollers. Said frames 13 are made each with a pair of opposite vertical forward posts 0 C and a rear post D, mortised in one longitudinal bed-piece E at the bottom and on the upper portion by a longitudinal piece F, and the two opposite side frames 13 are connected by the top pieces G from one pair of the forward posts to the other. Between the two top pieces G the vertical flint-bar H is guided. Below the flint said opposite side frames 13 are connected by a horizontal strong central cross-bar I, which is firmly bolted to support and guide the pressure-bar J, upon which the flint presses the paper in polishing. Other cross-bars are employed to connect said side frames solidly together. Between the crossbar I and the pressure-bar J is employed a bolster or bearing-bar K, and the cross-bar I is furnished with two strong vertical screws 1, as shown in Fig. 5, to raise or lower and adjust the bar K, and with it the pressurebar J, to the level of the travel of the flint, the bar of which is pivoted on its top to the spring L, arranged overhead or on the ceiling.

At the forward side of the pressure-bar J is provided a friction-board M, and adjoining its forward edge is arranged the drawing paper-feed roller N. At the rear of the pressure-bar J is made the inclined table or friction-board O, and upon it is provided a small pressure-roller a, guided in suitable hearings on its ends, but allowed to press upon said board. Both boards M and O join and are secured between the side frames 13. The rear edge of the board 0 is made rounded to allow the paper to pass properly over its edge. On the rear side of the rear posts D is arranged the roller P, which has the same diameter as that of the forward drawing paperfeed roller N. The roller P forwards the unpolished paper from the spool U to the roller N and spool V.

Both rollers P and N are arranged at the same level and have journals bearing in j ournalboxes secured to the side of the respective posts, and their journal ends project out from the right side frame B and have upon the projecting ends secured a wormwheel Q of equal diameter. Above said wornrwheels Q is employed a horizontal longitudinal shaft 12, arranged to revolve in bearings c, bolted to the said right side frame B, and upon each end of said shaft 19, to engage with the respective worm-wheel Q below it, is provided a like diameter and pitchworm R, and upon the portion of said shaft between the bearings c is furnished the cone-pulley (Z. At the lower portion of the same side of the frame, directly below the shaft b, is arranged a secondary longitudinal horizontal counter-shaft 6, also supported in bearings c, secured to the side of the frame, and it has a secondary cone-pulley (1 upon it, with the cone in op-- posite direction located, and also having a driving single pulley f of larger diameter upon it. The two cone-pulleys have one belt upon them to transmit the motion from one to the other. The pulley f receives the motion from the main counter-shaft S, which has a suitable pulley g and belt 71, and said shaft is revolving in bearings attached to the separate frame T and obtains its motion from the engine of the building. The same shaft S has a crank i on its forward end, to which the pitmanj is attached, which is connected with the flint-bar H in the usual way and causes the reciprocating motion to the flint and its bar. Said shaft S has a fast and loose pulley 7t k, and a belt-shifter Z is attached to the frame T, as shown in Figs. 1, 2, 3, and 4;, in

which the vertical leverarn1 m represents the fork engaging the belt and n the horizontal arm, which is engaged by the treadle-bar 0, attached to the treadle 1). On the same righthand side of the frame A is attached the shifter-bar r in bearings s, secured to the side, and a lever 25 is attached on its top end to the shifter-bar, while its bottom end has aforward end portion g to engage over the loose end of the treadle p and hold it from rising.

On the arm n of the shifter Z is applied a weight a to move the shifter-arm m with its belt-fork over to the loose pulley 7t" unless the treadle is held by the shoe q of the lever t. j The operator depresses the treadle by his foot to engage the belt upon the fixed pulley, and; by the shifter-bar n and its lever tit locks; the treadle to keep in motion the machine; but to stop the machine the shifter-bar r is; engaged, its lever 15 unlocks the treadle, andi the weight it moves the belt-fork over to the: loose pulley, by which the machine stops. i

The bar 1' projects on both the rear and front end of the machine to give ready access for the operator in case where the operator has to attend several machines located to the rear and front of one another.

The paper-carrying rollers revolve in bear- 1n gs secured to the front and rear posts of the I U represents the spool from which machine. the paper to operate upon is unwound, and V is the spool or winding-drum upon which the polished paper is wound. From the unwinding-spool U the paper passes over the roller 1', arranged above said spool V and forward of the feed-roller P, and from said roller r the paper passes under the feed-roller P and over the same and again over the roller 0;. Over the feed-roller is furnished a pressureroller 10 to grip the paper more fully upon the roller P. The paper passing from the roller P and over the roller 1* is suspended in a loop between the said roller -1; and the rear of the table or friction-board O and carry the l )ose compensating roller :0 in it to stretch the loop. The paper passing upon the board 0 passes under the roller 0 to give it friction upon said board, and passes over the.pressure bar J and is operated upon by the reciprocating flint, which polishes the same and passes therefrom over the board H and over the drawing-roller N to its underneath periphery, where a pressure-roller lV presses the paper to the periphery of the said roller N. The

paper from between the peripheries of the rollers l and V passes rearward over the guide-rollerX, and from it passing over forward to and over the adjustable rollerY and down rearward over the winding drum or spool V. Both the feed and drawing-rollers P and N have their peripheries covered with sheet rubber or cloth, by which proper friction is caused on the paper operated upon and thereby preventing its slipping or shifting out of place, and an equal polish is effected. The roller X revolves freely in bearings q, secured to the inside of the frame. The roller XV has its bearings each in the short arm of a lever .2, pivoted to a casting secured to the front side of the forward post, and the long arm of each lever .2 is provided with a weight y to press the roller TV to the periphery of the roller N and cause the paper to travel with said periphery. The roller Y revolves in sliding movable bearing-boxes 8, held and adjusted by set-screws a, as shown. By the means of changing the bearings of the roller Y to a relative parallel line with the axis of the spool V the travel of the paper is readily made to wind suitably upon the drum or spool V. Upon the left end of the arbor of the feed-roller P is provided a belt-pulley Z, and upon the left end of the arbor of the spool V is also a belt-pulley Z, and'by means of a cross-belt 15 over the pulleys Z and Z the spool V is caused to wind up the paper upon it. Said belt is left slack to allow it to slip upon the pulley when there is too much strain on the paper from too fast a speed when the spool has become of large diameter. A tightening-pulley is also provided in case the belt is too slack to propel said drum.

By means of the cone-pulleys employed upon the shafts and b the speed of the'feed and drawing rollers P and N is readily changed from time to time to have it proper for the speed of the polishing-flint to produce the desired uniform and desired polish of the paper. The flint-bar H is suspended from a pivot at on the left end of the pressure-spring L, the right-hand end of said spring being held in a strong guide 5, secured to the ceiling of the room and provided with a set-screw (3 to adjust the desirable strain and pressure of said spring upon the flint-bar H. At the central portion of said spring is provided a suitable strong hanger 7,secured also to the ceiling,and with two loops in which the spring is guided, and between said loops is employed a vertical link-rod 8, extending to the floor into a slotted pivot-plate 9, which is .iirmly bolted to the floor. The bottom end of the rod 8 is pivoted to the plate 9. The said rod consists of two sections, one to extend from the top hanger7 to a suitable distance below and the other from it to the plate 9, and at the junction of them they are connected by a pivot 10, and one is forked to fit over the other, and it is forked to pass over a horizontal link-bar 11, also held by the same pivot Said link-bar extends over to the flint-bar H and is connected bya suitable pivot 12 and fork on said bar. The upper section of the link-rod 8 is also forked to pass each side of the spring L, and above it the prongs of the fork of the rod are combined by a lateral strong pivot-bolt 13. By means of the set-screw 6 in the guide 5 the spring L is pressed down upon the flintbar II. By the motion of the pitman over the center of the crank the 1ink-rod is bent outward, drawing the spring L down and causing an equalizing pressure of the flint at the end of its stroke with the center of the stroke, as shown by dotted lines.

From the foregoing it will be observed by means of the rubber covering of the feedrollers P and N a superior friction upon the paper is obtained, and in addition, by means of the pressure-rollers w and IV upon the feed-rollers P and N and the pressure-roller a upon the table 0, the slipping of the paper feeding is largely avoided. By means of the weight 2, suspended in the loop of the paper, the tension is compensated and made equal between the feed-rollers and under the flint.

The speed of both rollers P and N'is made positively equal by their geared connection.

The speed of the feed of the paper to the flint is compensated by the employment of the cone-pul1eys 2.

\Vhen the paper is held by the flint-bar the belt will slip on pulley Z.

hat. I claim as my invention, and desire to secure by Letters Patent, is

In a machine for polishing paper, the (30111- bination of the reciprocating flint-bar, the pressure-bar, the paper-friction tables, the paper-carryin g spools and the feed-Worms and gears and operating in echan ism substantially as specified.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 3d day of January, 1895.

CHRISTIAN F. HAU'FF.

IVitnesses EMILIE REINHARDT, D. BOEKLEN. 

